glibc/sysdeps/mach/hurd/getppid.c

33 lines
1.1 KiB
C

/* Copyright (C) 1991-2017 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <hurd.h>
/* Get the parent process ID of the calling process. */
pid_t
__getppid (void)
{
/* Assumes atomic word fetch and store, so doesn't lock _hurd_pid_lock. */
return _hurd_ppid;
}
weak_alias (__getppid, getppid)